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RegionLoaderWebServer.cs 6.3 KB

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  1. /*
  2. * Copyright (c) Contributors, http://opensimulator.org/
  3. * See CONTRIBUTORS.TXT for a full list of copyright holders.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions are met:
  7. * * Redistributions of source code must retain the above copyright
  8. * notice, this list of conditions and the following disclaimer.
  9. * * Redistributions in binary form must reproduce the above copyright
  10. * notice, this list of conditions and the following disclaimer in the
  11. * documentation and/or other materials provided with the distribution.
  12. * * Neither the name of the OpenSimulator Project nor the
  13. * names of its contributors may be used to endorse or promote products
  14. * derived from this software without specific prior written permission.
  15. *
  16. * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
  17. * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19. * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
  20. * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  21. * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  22. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  23. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  25. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26. */
  27. using System;
  28. using System.IO;
  29. using System.Net;
  30. using System.Reflection;
  31. using System.Xml;
  32. using log4net;
  33. using Nini.Config;
  34. namespace OpenSim.Framework.RegionLoader.Web
  35. {
  36. public class RegionLoaderWebServer : IRegionLoader
  37. {
  38. private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
  39. private IConfigSource m_configSource;
  40. public void SetIniConfigSource(IConfigSource configSource)
  41. {
  42. m_configSource = configSource;
  43. }
  44. public RegionInfo[] LoadRegions()
  45. {
  46. if (m_configSource == null)
  47. {
  48. m_log.Error("[WEBLOADER]: Unable to load configuration source!");
  49. return null;
  50. }
  51. else
  52. {
  53. IConfig startupConfig = (IConfig) m_configSource.Configs["Startup"];
  54. string url = startupConfig.GetString("regionload_webserver_url", String.Empty).Trim();
  55. bool allowRegionless = startupConfig.GetBoolean("allow_regionless", false);
  56. if (url == String.Empty)
  57. {
  58. m_log.Error("[WEBLOADER]: Unable to load webserver URL - URL was empty.");
  59. return null;
  60. }
  61. else
  62. {
  63. RegionInfo[] regionInfos = new RegionInfo[] {};
  64. int regionCount = 0;
  65. HttpWebRequest webRequest = (HttpWebRequest) WebRequest.Create(url);
  66. webRequest.Timeout = 30000; //30 Second Timeout
  67. m_log.DebugFormat("[WEBLOADER]: Sending download request to {0}", url);
  68. try
  69. {
  70. string xmlSource = String.Empty;
  71. using (HttpWebResponse webResponse = (HttpWebResponse) webRequest.GetResponse())
  72. {
  73. m_log.Debug("[WEBLOADER]: Downloading region information...");
  74. using (Stream s = webResponse.GetResponseStream())
  75. {
  76. using (StreamReader reader = new StreamReader(s))
  77. {
  78. string tempStr = reader.ReadLine();
  79. while (tempStr != null)
  80. {
  81. xmlSource = xmlSource + tempStr;
  82. tempStr = reader.ReadLine();
  83. }
  84. }
  85. }
  86. }
  87. m_log.Debug("[WEBLOADER]: Done downloading region information from server. Total Bytes: " +
  88. xmlSource.Length);
  89. XmlDocument xmlDoc = new XmlDocument();
  90. xmlDoc.LoadXml(xmlSource);
  91. if (xmlDoc.FirstChild.Name == "Regions")
  92. {
  93. regionCount = xmlDoc.FirstChild.ChildNodes.Count;
  94. if (regionCount > 0)
  95. {
  96. regionInfos = new RegionInfo[regionCount];
  97. int i;
  98. for (i = 0; i < xmlDoc.FirstChild.ChildNodes.Count; i++)
  99. {
  100. m_log.Debug(xmlDoc.FirstChild.ChildNodes[i].OuterXml);
  101. regionInfos[i] =
  102. new RegionInfo("REGION CONFIG #" + (i + 1), xmlDoc.FirstChild.ChildNodes[i],false,m_configSource);
  103. }
  104. }
  105. }
  106. }
  107. catch (WebException ex)
  108. {
  109. using (HttpWebResponse response = (HttpWebResponse)ex.Response)
  110. {
  111. if (response.StatusCode == HttpStatusCode.NotFound)
  112. {
  113. if (!allowRegionless)
  114. throw ex;
  115. }
  116. else
  117. {
  118. throw ex;
  119. }
  120. }
  121. }
  122. if (regionCount > 0 | allowRegionless)
  123. {
  124. return regionInfos;
  125. }
  126. else
  127. {
  128. m_log.Error("[WEBLOADER]: No region configs were available.");
  129. return null;
  130. }
  131. }
  132. }
  133. }
  134. }
  135. }